Evaluation And Design Of Odots Type 5 Guardrail With Tubular Backup
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Author | : Chuck A. Plaxico |
Publisher | : |
Total Pages | : 174 |
Release | : 2006 |
Genre | : Roads |
ISBN | : |
The purpose of this project was to assess the performance of both the ODOT GR-2.2 guardrail and the ODOT GR-3.4 transition system under NCHRP Report 350 test level 3 (TL-3) conditions, propose any modifications that would improve their crashworthiness and, ultimately ensure that the final designs qualify for use on the National Highway System (NHS) as TL-3 systems. Finite element analyses of the guardrail and transition system were performed using the LS-DYNA finite element software to simulate NCHRP Report 350 Test 3-10 and Test 3-11 impact scenarios. The analysis results indicated that the original ODOT GR-2.2 guardrail would successfully meet all NCHRP Report 350 test level 3 safety criteria. The analyses also indicated that the performance of the system could be significantly improved with simple modifications to the guardrail. The integrated system of the Nested Type 5 Guardrail with Tubular Backup and the ODOT GR-3.4 transition was considered the most practical and feasible design improvement and was therefore recommended as a final design.
Author | : Jeffrey C. Thiele |
Publisher | : |
Total Pages | : 450 |
Release | : 2010 |
Genre | : Bridge railings |
ISBN | : |
Author | : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety |
Publisher | : |
Total Pages | : 560 |
Release | : 1989 |
Genre | : Roads |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2010 |
Genre | : Electronic book |
ISBN | : |
Author | : James E. Bryden |
Publisher | : Transportation Research Board |
Total Pages | : 131 |
Release | : 2002 |
Genre | : Automobile driving at night |
ISBN | : 0309067650 |
Author | : |
Publisher | : |
Total Pages | : 1004 |
Release | : 1975 |
Genre | : Aeronautics |
ISBN | : |
Author | : Peter Watts |
Publisher | : Macmillan |
Total Pages | : 388 |
Release | : 2006-10-03 |
Genre | : Fiction |
ISBN | : 1429955198 |
Hugo and Shirley Jackson award-winning Peter Watts stands on the cutting edge of hard SF with his acclaimed novel, Blindsight Two months since the stars fell... Two months of silence, while a world held its breath. Now some half-derelict space probe, sparking fitfully past Neptune's orbit, hears a whisper from the edge of the solar system: a faint signal sweeping the cosmos like a lighthouse beam. Whatever's out there isn't talking to us. It's talking to some distant star, perhaps. Or perhaps to something closer, something en route. So who do you send to force introductions with unknown and unknowable alien intellect that doesn't wish to be met? You send a linguist with multiple personalities, her brain surgically partitioned into separate, sentient processing cores. You send a biologist so radically interfaced with machinery that he sees x-rays and tastes ultrasound. You send a pacifist warrior in the faint hope she won't be needed. You send a monster to command them all, an extinct hominid predator once called vampire, recalled from the grave with the voodoo of recombinant genetics and the blood of sociopaths. And you send a synthesist—an informational topologist with half his mind gone—as an interface between here and there. Pray they can be trusted with the fate of a world. They may be more alien than the thing they've been sent to find. At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.
Author | : |
Publisher | : |
Total Pages | : 66 |
Release | : 2004 |
Genre | : Highway departments |
ISBN | : |
Author | : American Association of State Highway and Transportation Officials |
Publisher | : AASHTO |
Total Pages | : 134 |
Release | : 2005 |
Genre | : Technology & Engineering |
ISBN | : 156051325X |
This guide replaces the 1984 publication entitled An Informational Guide for Roadway Lighting. It has been revised and brought up to date to reflect current practices in roadway lighting. The guide provides a general overview of lighting systems from the point of view of the transportation departments and recommends minimum levels of quality. The guide incorporates the illuminance and luminance design methods, but does not include the small target visibility (STV) method.
Author | : Rick Riordan |
Publisher | : Disney Electronic Content |
Total Pages | : 380 |
Release | : 2009-05-02 |
Genre | : Juvenile Fiction |
ISBN | : 1423131991 |
All year the half-bloods have been preparing for battle against the Titans, knowing the odds of victory are grim. Kronos's army is stronger than ever, and with every god and half-blood he recruits, the evil Titan's power only grows. While the Olympians struggle to contain the rampaging monster Typhon, Kronos begins his advance on New York City, where Mount Olympus stands virtually unguarded. Now it's up to Percy Jackson and an army of young demigods to stop the Lord of Time.